<?php
/* $Id$ */
/*
	firewall_nat.php
	Copyright (C) 2004 Scott Ullrich
	All rights reserved.

	originally part of m0n0wall (http://m0n0.ch/wall)
	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
	All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice,
	   this list of conditions and the following disclaimer.

	2. Redistributions in binary form must reproduce the above copyright
	   notice, this list of conditions and the following disclaimer in the
	   documentation and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	POSSIBILITY OF SUCH DAMAGE.
*/

##|+PRIV
##|*IDENT=page-firewall-nat-portforward
##|*NAME=Firewall: NAT: Port Forward page
##|*DESCR=Allow access to the 'Firewall: NAT: Port Forward' page.
##|*MATCH=firewall_nat.php*
##|-PRIV


require("guiconfig.inc");

if (!is_array($config['nat']['rule']))
	$config['nat']['rule'] = array();

$a_nat = &$config['nat']['rule'];

/* if a custom message has been passed along, lets process it */
if ($_GET['savemsg'])
	$savemsg = $_GET['savemsg'];

if ($_POST) {

	$pconfig = $_POST;

	if ($_POST['apply']) {

		write_config();

		$retval = 0;

		if(stristr($retval, "error") <> true)
		    $savemsg = get_std_save_message($retval);
		else
		    $savemsg = $retval;

		unlink_if_exists("/tmp/config.cache");
		$retval |= filter_configure();

		if ($retval == 0) {
			if (file_exists($d_natconfdirty_path))
				unlink($d_natconfdirty_path);
			if (file_exists($d_filterconfdirty_path))
				unlink($d_filterconfdirty_path);
		}

	}
}

if (isset($_POST['del_x'])) {
    /* delete selected rules */
    if (is_array($_POST['rule']) && count($_POST['rule'])) {
	    foreach ($_POST['rule'] as $rulei) {
		$target = $rule['target'];
	        unset($a_nat[$rulei]);
	    }
	    write_config();
	    touch($d_natconfdirty_path);
	    header("Location: firewall_nat.php");
	    exit;
	}

} else {
        /* yuck - IE won't send value attributes for image buttons, while Mozilla does - so we use .x/.y to find move button clicks instead... */
        unset($movebtn);
        foreach ($_POST as $pn => $pd) {
                if (preg_match("/move_(\d+)_x/", $pn, $matches)) {
                        $movebtn = $matches[1];
                        break;
                }
        }
        /* move selected rules before this rule */
        if (isset($movebtn) && is_array($_POST['rule']) && count($_POST['rule'])) {
                $a_nat_new = array();

                /* copy all rules < $movebtn and not selected */
                for ($i = 0; $i < $movebtn; $i++) {
                        if (!in_array($i, $_POST['rule']))
                                $a_nat_new[] = $a_nat[$i];
                }

                /* copy all selected rules */
                for ($i = 0; $i < count($a_nat); $i++) {
                        if ($i == $movebtn)
                                continue;
                        if (in_array($i, $_POST['rule']))
                                $a_nat_new[] = $a_nat[$i];
                }

                /* copy $movebtn rule */
                if ($movebtn < count($a_nat))
                        $a_nat_new[] = $a_nat[$movebtn];

                /* copy all rules > $movebtn and not selected */
                for ($i = $movebtn+1; $i < count($a_nat); $i++) {
                        if (!in_array($i, $_POST['rule']))
                                $a_nat_new[] = $a_nat[$i];
                }
                $a_nat = $a_nat_new;
                write_config();
                touch($d_natconfdirty_path);
                header("Location: firewall_nat.php");
                exit;
        }
}

$pgtitle = array("防火墙","NAT","端口转发");
$pgmenu = array('nat', '/firewall_nat.php');
include("head.inc");

echo "<script type=\"text/javascript\" language=\"javascript\" src=\"/javascript/domTT/domLib.js\"></script>";
echo "<script type=\"text/javascript\" language=\"javascript\" src=\"/javascript/domTT/domTT.js\"></script>";
echo "<script type=\"text/javascript\" language=\"javascript\" src=\"/javascript/domTT/behaviour.js\"></script>";
echo "<script type=\"text/javascript\" language=\"javascript\" src=\"/javascript/domTT/fadomatic.js\"></script>";

?>
<body link="#000000" vlink="#000000" alink="#000000">
<?php include("fbegin.inc"); ?>
<form action="firewall_nat.php" method="post" name="iform">
<script type="text/javascript" language="javascript" src="/javascript/row_toggle.js"></script>
<?php if (file_exists($d_natconfdirty_path)): ?><p>
<?php
	if($savemsg)
		print_info_box_np("{$savemsg}<br>NAT配置已更改。<br>请应用更改使其生效。");
	else
		print_info_box_np("NAT配置已更改。<br>请应用更改使其生效。");
?>
<?php endif; ?>
<div class="soft_cont_right_table">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
  <tr><td>
<?php
	$tab_array = array();
	$tab_array[] = array("端口转发", true, "firewall_nat.php");
	$tab_array[] = array("1:1 NAT", false, "firewall_nat_1to1.php");
	$tab_array[] = array("NAT规则", false, "firewall_nat_out.php");
//	display_top_tabs($tab_array);
?>
 </td></tr>
  <tr>
    <td>
	<div id="mainarea">
              <table class="tabcont" width="100%" border="0" cellpadding="0" cellspacing="0">
                <tr id="frheader">
                  <td width="3%" class="list">&nbsp;</td>
                  <td width="7%" class="listhdrr">接口</td>
                  <td width="7%" class="listhdrr">协议</td>
                  <td width="20%" class="listhdrr">外部端口</td>
                  <td width="20%" class="listhdrr">NAT IP</td>
                  <td width="20%" class="listhdrr">内部端口</td>
                  <td width="18%" class="listhdr">描述</td>
                  <td width="5%" class="list">
                    <table border="0" cellspacing="0" cellpadding="1">
                      <tr>
			<td width="17"></td>
                        <td><a href="firewall_nat_edit.php"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0"></a></td>
                      </tr>
                    </table>
		  </td>
		</tr>
	<?php $nnats = $i = 0; foreach ($a_nat as $natent): ?>
	<?php 
	
		//build Alias popup box
		$span_begin = "";
		$span_end = "";
		$alias_src_port_span_begin = "";
		$alias_dst_span_begin = "";
		$alias_dst_port_span_begin = "";
		
		list($beginport, $endport) = split("-", $natent['external-port']);		
		
		$alias_popup = rule_popup("",$beginport,$natent['target'],$natent['local-port']);
		$span_end = "</U></span>";
			
		 									
		$alias_src_port_span_begin = $alias_popup["srcport"];
											
		$alias_dst_span_begin = $alias_popup["dst"];
												
		$alias_dst_port_span_begin = $alias_popup["dstport"];
													
		

	
		/* if user does not have access to edit an interface skip on to the next record */
		if(!have_natpfruleint_access($natent['interface'])) 
			continue;
	?>
                <tr valign="top" id="fr<?=$nnats;?>">
                  <td class="listt"><input type="checkbox" id="frc<?=$nnats;?>" name="rule[]" value="<?=$i;?>" onClick="fr_bgcolor('<?=$nnats;?>')" style="margin: 0; padding: 0; width: 15px; height: 15px;"></td>
                  <td class="listlr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_edit.php?id=<?=$nnats;?>';">
		    <?php
			if (!$natent['interface'] || ($natent['interface'] == "wan"))
				echo "WAN";
			else if(strtolower($natent['interface']) == "lan")
				echo "LAN";
			else
				echo strtoupper($config['interfaces'][$natent['interface']]['descr']);
		    ?>
                  </td>
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_edit.php?id=<?=$nnats;?>';">
                    <?=strtoupper($natent['protocol']);?>
                  </td>
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_edit.php?id=<?=$nnats;?>';">
                    <?php
						list($beginport, $endport) = split("-", $natent['external-port']);
						if ((!$endport) || ($beginport == $endport)) {
							echo $alias_src_port_span_begin;
				  			echo $beginport;
							if ($wkports[$beginport])
								echo " (" . $wkports[$beginport] . ")";
							else
								echo "&nbsp;";
							echo $span_end;
						} else
							echo $beginport . " - " . $endport;
				  ?>
                  </td>
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_edit.php?id=<?=$nnats;?>';">
                    <?php echo $alias_dst_span_begin;?><?=$natent['target'];?><?php echo $span_end;?>
					<?php if ($natent['external-address'])
						echo "<br>(ext.: " . $natent['external-address'] . ")";
					      else
						echo "<br>(ext.: " . find_interface_ip(convert_friendly_interface_to_real_interface_name($natent['interface'])) . ")";
					?>
                  </td>
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_edit.php?id=<?=$nnats;?>';">
                    <?php if ((!$endport) || ($beginport == $endport)) {
				  			echo $alias_dst_port_span_begin;
                    		echo $natent['local-port'];
							if ($wkports[$natent['local-port']])
								echo " (" . $wkports[$natent['local-port']] . ")";
							else
								echo "&nbsp;";
							echo $span_end;
						} else
							echo $natent['local-port'] . " - " .
								($natent['local-port']+$endport-$beginport);
				  ?>
                  </td>
                  <td class="listbg" onClick="fr_toggle(<?=$nnats;?>)" ondblclick="document.location='firewall_nat_edit.php?id=<?=$nnats;?>';">
                    <?=htmlspecialchars($natent['descr']);?>&nbsp;
                  </td>
                  <td valign="middle" class="list" nowrap>
                    <table border="0" cellspacing="0" cellpadding="1">
                      <tr>
                        <td><a href="firewall_nat_edit.php?id=<?=$i;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0" title="编辑"></a></td>
                      </tr>
                      <tr>
                        <td><input onmouseover="fr_insline(<?=$nnats;?>, true)" onmouseout="fr_insline(<?=$nnats;?>, false)" name="move_<?=$i;?>" src="/themes/<?= $g['theme']; ?>/images/icons/icon_left.gif" title="移动到该规则前" height="17" type="image" width="17" border="0"></td>
                        <td><a href="firewall_nat_edit.php?dup=<?=$i;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" title="以该规则为基础添加" width="17" height="17" border="0"></a></td>
                      </tr>
                    </table>
		</tr>
  	     <?php $i++; $nnats++; endforeach; ?>
                <tr>
                  <td class="list" colspan="7"></td>
                  <td class="list" valign="middle" nowrap>
                    <table border="0" cellspacing="0" cellpadding="1">
                      <tr>
                        <td><?php if ($nnats == 0): ?><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_left_d.gif" width="17" height="17" title="移动到底部" border="0"><?php else: ?><input name="move_<?=$i;?>" type="image" src="/themes/<?= $g['theme']; ?>/images/icons/icon_left.gif" width="17" height="17" title="移动到底部" border="0"><?php endif; ?></td>
                        <td><a href="firewall_nat_edit.php"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0"></a></td>
                      </tr>
                      <tr>
                        <td><?php if ($nnats == 0): ?><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_x_d.gif" width="17" height="17" title="删除所选规则" border="0"><?php else: ?><input name="del" type="image" src="./themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" title="删除所选" onclick="return confirm('是否确认删除？')"><?php endif; ?></td>
                      </tr>
                    </table>
		  </td>
                </tr>
	</table>
	</div>
	</td>
  </tr>
</table>
</div>
<?php
if ($pkg['tabs'] <> "") {
    echo "</td></tr></table>";
}
?>

</form>
<?php include("fend.inc"); ?>
</body>
</html>
